Store your photos and videos in iCloud
Photos stored in iClouds photo stream are only stored for up to 30 days and up to 1000 photos (whichever you reach first). You should save any photos you want to keep to your photo roll or iPhoto within the 30 days allocated.
How to access iCloud Photos
If you're on a Mac:
Apple's online service, iCloud Photo Library, lets you seamlessly access, manage, edit, and share pictures and video from your iPhone, iPad, and your Mac. It's free to use — though if you want to store any real amount of data, you're going to have to pony up for a paid iCloud plan.
Your photos and videos are stored in iCloud in their original formats at full resolution. This includes HEIF, JPEG, RAW, PNG, GIF, TIFF, HEVC, and MP4 as well as special formats you capture with your iPhone or iPad, like slo-mo, time-lapse, 4K videos, and Live Photos.
How to access iCloud photos on an iPhone or iPad
If you don't want to set up iCloud on your device or are using someone else's device (including a Chromebook device), your iCloud Photos library is accessible from a web browser.
Store your photos and videos in iCloud Get started with iCloud Photos: Tap Settings > [your name] > iCloud > Photos. Turn on iCloud Photos. Select Optimize iPhone Storage to save space on your device.
Turn on iCloud Photos In the Photos app on your Mac, choose Photos > Preferences, then click iCloud. Select the iCloud Photos checkbox. Select one of the following options: Download Originals to this Mac: Stores the full-size versions of your photos both on your Mac and in iCloud.
Turn on iCloud Photos Click iCloud in the Apple ID preferences sidebar, then select Photos in the list of apps. In the Photos app on your Mac, choose Photos > Preferences, then click iCloud. Select the iCloud Photos checkbox.
Once you have turned on iCloud Photos, you're automatically saving photos and videos to a single library that you can access remotely.
Syncing your iCloud photos library to your PC also means you can access iCloud photos on the PC even when you're offline.
Share and collaborate on albums You can share photo and video albums with friends and family who use iCloud, and they can view shared albums in the Photos app.
Only your System Photo Library can receive photos transferred by iCloud Photos. By default, the System Photo Library is located in the Pictures folder on your Mac. You can also create additional photo libraries on your Mac and on other storage devices.